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1. 发明公开

US20230241740A1 MACHINING ACCURACY DIAGNOSING DEVICE AND MACHINING ACCURACY MANAGEMENT SYSTEM FOR MACHINE TOOL 审中-公开
公开(公告)号：US20230241740A1
公开(公告)日：2023-08-03
申请号：US18155842
申请日：2023-01-18
申请人： OKUMA CORPORATION
发明人： Yuji MIZOGUCHI , Takashi NORIHISA , Toshihiko MURAHASHI
IPC分类号： B23Q15/18 , B23Q11/14 , G01M99/00
CPC分类号： B23Q15/18 , B23Q11/148 , G01M99/005 , B23Q2717/00
摘要： A machining accuracy diagnosing device includes a diagnosing information acquiring, an opening time setting unit, a cutting time setting unit, and a machining accuracy influence amount predicting unit. The diagnosing information acquiring unit acquires at least one of a room temperature inside the plant, a set temperature of a temperature regulating device, an air temperature outside the plant, a wind speed outside the plant, an opening degree of the door or the shutter, and a machine body temperature. The opening time setting unit sets an opening time of the door or the shutter. The machining accuracy influence amount predicting unit predicts an influence amount of opening of the door or the shutter on the machining accuracy based on the acquired information for diagnosis, the set opening time of the door or the shutter, and a set scheduled machining start time and a set scheduled machining end time.

2. 发明申请

US20220260972A1 CONTROL APPARATUS OF MACHINING DEVICE AND CONTROL METHOD OF THE SAME 有权
公开(公告)号：US20220260972A1
公开(公告)日：2022-08-18
申请号：US17595152
申请日：2020-04-20
申请人： Mazda Motor Corporation
发明人： Junya Matsuda , Tomonori Saeki , Keiichi Shimizu
IPC分类号： G05B19/4155 , B24B51/00 , B23Q15/18
摘要： A machining center processes a section not to be corrected of a workpiece and a crankshaft bearing hole in a different position from the section not to be corrected and which is separated from an upper deck surface of the workpiece. The machining center supplies a coolant to the hole during processing and detects a temperature of the coolant. A control apparatus estimates the temperature of the coolant when a predetermined time elapses from a start of the processing to be a temperature of the workpiece, calculates a deformation amount of the workpiece due to thermal expansion, corrects a position of the hole with respect to the upper deck surface based on the deformation amount, and starts processing of the hole after the predetermined time. The predetermined time ends when a difference between a temperature near the hole and the temperature of the coolant falls within a predetermined range.

3. 发明授权

US11305395B2 Thermal displacement compensation system 有权
公开(公告)号：US11305395B2
公开(公告)日：2022-04-19
申请号：US16143467
申请日：2018-09-27
申请人： FANUC CORPORATION
发明人： Keita Hada , Kazunori Iijima
IPC分类号： B23Q15/18 , B23Q11/00 , G05B19/404
摘要： A thermal displacement compensation system detects a state quantity indicating a state of a machine, infers a thermal displacement compensation amount of the machine from the detected state quantity, and performs a thermal displacement compensation of the machine based on the inferred thermal displacement compensation amount of the machine. The thermal displacement compensation system generates a learning model by machine learning that uses a feature quantity, and stores the generated learning model in association with a combination of specified conditions of individual difference of the machine.

4. 发明申请

US20200338680A1 TESTBED DEVICE FOR USE IN PREDICTIVE MODELLING OF MANUFACTURING PROCESSES 审中-公开
公开(公告)号：US20200338680A1
公开(公告)日：2020-10-29
申请号：US16856533
申请日：2020-04-23
申请人： University of Kentucky Research Foundation
发明人： Julius Schoop
IPC分类号： B23Q17/24 , B23Q15/18 , B23Q16/00
摘要： A testbed device includes high performance actuators, a video microscopy system and a plurality of high resolution, throughput sensors adapted or configured for collecting data that may be used in predictive modelling of machine processes.

5. 发明授权

US10814447B2 Cooling system and method for machine tools 有权
公开(公告)号：US10814447B2
公开(公告)日：2020-10-27
申请号：US15631091
申请日：2017-06-23
申请人： James Gosselin , Jake Hagelstein
发明人： James Gosselin , Jake Hagelstein
IPC分类号： B23Q11/10 , B23B31/02 , B23B31/40 , B23D59/02 , B23B31/107 , B23B29/04 , B23Q15/18
摘要： A clamping system for machine tools includes a body portion configured to be received in a holding fixture of a machine, a tool holder integrally formed with and extending longitudinally from the body portion, the tool holder having a mounting mechanism on a distal end thereof for receiving a cutting tool, at least one fluid delivery vein extending through the tool holder from the body portion to the distal end of the tool holder, and at least one outlet at the distal end of the tool holder, the at least one outlet being configured to direct a fluid from the at least one fluid delivery vein toward at least one of the cutting tool and a workpiece.

6. 发明申请

US20200064809A1 ASSESSING DEFLECTIONS EXPERIENCED BY A WORKPIECE DURING COMPUTER CONTROLLED MACHINING WITH A TOOLPATH TO DETERMINE STOCK AMOUNT 审中-公开
公开(公告)号：US20200064809A1
公开(公告)日：2020-02-27
申请号：US16111006
申请日：2018-08-23
申请人： Autodesk, Inc.
发明人： Lee Sanders , Daniel Mario Noviello
IPC分类号： G05B19/404 , G05B19/4093 , B23Q15/18 , B23Q15/22 , G06F17/50
摘要： Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of physical structures using subtractive manufacturing systems and techniques and a determined stock allowance include, in one aspect, a method including: obtaining a finishing toolpath specification for three dimensional (3D) geometry of a part; generating 3D geometry of a model of a semi-finished structure in accordance with a computer simulation of deflections experienced by a workpiece as stock material is cut from the workpiece using the finishing toolpath specification; creating a semi-finishing toolpath specification for the semi-finished structure; and providing the semi-finishing toolpath specification for use in machining the part by cutting away a first portion of the stock material using the semi-finishing toolpath specification to form the semi-finished structure, followed by performing a finishing operation of the semi-finished structure by cutting away a second portion of the stock material to form the part.

7. 发明授权

US10409258B2 Method for compensating for a deviation in an operating point 有权
公开(公告)号：US10409258B2
公开(公告)日：2019-09-10
申请号：US15540633
申请日：2015-12-22
申请人： Broetje-Automation GmbH
发明人： Markus Stoyke
IPC分类号： G05B19/404 , B23Q15/18
摘要： Various embodiments relate to compensating for a deviation in an operating point of a manipulator during the processing of a workpiece. A command sequence is processed for controlling the manipulator, and a piece of setpoint position information is generated. The operating point is set based on the setpoint position information. The setpoint position information is processed using a compensation parameter set for ascertaining a compensation value. The setpoint position information is adjusted according to the compensation value for compensating for a deviation between an actual position of the operating point and the setpoint position. The actual position is measured during the processing of the workpiece. A correction value is ascertained, based on a comparison between the measured actual position and the setpoint position. The compensation parameter set is adjusted during the processing of the workpiece for reducing the deviation based on the correction value.

8. 发明授权

US10353373B2 Machine tool thermal displacement and magnification correction adjustment 有权
公开(公告)号：US10353373B2
公开(公告)日：2019-07-16
申请号：US15458028
申请日：2017-03-14
申请人： Yamazaki Mazak Corporation
发明人： Atsushi Suzuki , Tsunekazu Ishida , Toshihito Okuda
IPC分类号： G05B19/19 , B23Q15/04 , G05B19/404 , G05B19/406 , B23Q15/18
摘要： A machine tool includes a workpiece holding unit to hold a workpiece. A tool holding unit holds a tool. At least one of the workpiece holding unit and the tool holding unit is drivingly rotatable or drivingly movable in a predetermined direction to machine the workpiece with the tool. Temperature sensors are attached to members constituting the machine tool. An estimator calculates an environmental temperature system thermal displacement amount due to a heat source outside the machine tool. A correction magnification processor calculates an environmental temperature system thermal displacement correction amount. Another estimator calculates a driving system thermal displacement amount due to a heat source in the machine tool. A thermal displacement correction amount adder obtains and outputs a total thermal displacement correction amount based on which the machine tool performs thermal displacement correction control.

9. 发明申请

US20110197730A1 METHOD OF CUTTING OFF WORKPIECE USING BAND SAW MACHINE AS WELL AS BAND SAW MACHINE 审中-公开
标题翻译：使用带锯床的工作台切割工具的方法
公开(公告)号：US20110197730A1
公开(公告)日：2011-08-18
申请号：US13097590
申请日：2011-04-29
申请人： Toru TOKIWA
发明人： Toru TOKIWA
IPC分类号： B23Q15/18 , B26D5/00
CPC分类号： B26D1/46 , B23D55/005 , B23D55/06 , B23D59/001 , Y10T83/04 , Y10T83/0605 , Y10T83/141 , Y10T83/148 , Y10T83/707 , Y10T83/7139
摘要： A method of cutting off a workpiece using a band saw blade. Chatter oscillation of the band saw blade is detected, the detected chatter oscillation is input to a pulse generator, and pulses based on the inputted chatter oscillation with a frequency not less than a characteristic frequency of a band saw blade supporting system are input from the pulse generator to the motor for imparting to one of the driving wheel and the driven wheel a forced longitudinal oscillation so that a phase of an oscillation the driving wheel along a rotational direction for the driving wheel is substantially inverted with respect to a phase of an oscillation of the driven wheel along a rotational direction of the driven wheel.
摘要翻译：使用带锯刀片切断工件的方法。检测到带锯叶片的抖动振荡，将检测到的颤振振荡输入到脉冲发生器，并根据输入的频率不小于带锯片支撑系统的特征频率的颤振振荡脉冲从脉冲发电机到电动机，以将驱动轮和从动轮中的一个施加强制纵向振荡，使得驱动轮沿着驱动轮的旋转方向的振动相位相对于振荡的相位基本上反转从动轮沿着从动轮的旋转方向。

10. 发明授权

US07266903B2 Method for correcting thermal displacement in a machine tool 有权
标题翻译：校正机床热位移的方法
公开(公告)号：US07266903B2
公开(公告)日：2007-09-11
申请号：US11372641
申请日：2006-03-10
申请人： Reiji Sato
发明人： Reiji Sato
IPC分类号： B23Q15/18 , B23Q17/00 , G05B19/404
CPC分类号： G05B19/404 , G05B2219/49206 , G05B2219/49207 , G05B2219/49218
摘要： A thermal displacement correction method is provided, including the steps of presetting coordinate data for a fixed position of a workpiece on a table, finding an amount of displacement of the fixed position of the workpiece at a current cutting edge position based on the detected temperature, the coordinate data of the cutting edge position, and the coordinate data of the fixed position, and computing a difference in the coordinate data between the fixed position of the workpiece and the cutting edge position, finding an amount of displacement of the workpiece between its fixed position and the cutting edge position based on the detected temperature and the difference in the coordinate data between the fixed position and the cutting edge position, and computing a sum of each amount of displacement to define an estimated value and correcting thermal displacement using an NC unit based on the estimated value.
摘要翻译：提供一种热位移校正方法，包括以下步骤：基于检测到的温度，将工件的固定位置的坐标数据预设在工作台上，找出工件在当前切削刃位置处的固定位置的位移量，切削刃位置的坐标数据和固定位置的坐标数据，并计算工件的固定位置与切削刃位置之间的坐标数据的差异，求出工件在其固定位置之间的位移量基于所检测的温度和所述固定位置与所述切削刃位置之间的坐标数据的差异的所述切削刃位置，以及计算每个位移量的和以定义估计值并使用NC单元校正热位移基于估计值。

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